Printing press



1945. E. WIORTHIINGTOYN PRINTING PRESS A Fild April a, 1943 INVENTOR.

' be obvious herefrom,

.object is to promote the accurate and UNITED STATES PATENT- OFFICE.

ram'rmo mass: 7 Emory W. Worthington, Chicago, Ill., assignor to TheGoss Printing Press Company,

a corporation of Illinois ApplicationgApril 8, 1943, Serial No. 482,229l 6 Claims. (01. 101-409) The present invention relates to printingPresses, and more Part cularly to protective and portions of printingcovering means for certain presses. a

Objects and advantages of the invention will be set forth in parthereinafter and in part will or may be learned by practice with theinvention, the same being realized and attained bymeans of theinstrumentalities and" combinations pointed out in the appended- Theinvention consists in the novel parts, constructions, arrangements,combinations and improvements herein shown and described.

The accompanying drawing; referred to herein and constituting a thedescription, serves to explain the principles of the invention.

Of the drawing: Fig. 1 is a transverse cross sectional view of certainportions of a printing press folding mechanism embodying the presentinvention;

Fig. 2 is a longitudinal cross sectional view taken along line 2-2 ofFig. 1; and

Fig, 3 is a transverse cross-sectional view taken along line 3-3 of Fig.2.

It is an-object of the present invention to provide protective andcovering means for certain mechanisms of a printing press. Another,faultless part hereof, illustrates one embodiment of the invention, andtogether with Chicago, Ill.,

adjacent the endof the folder, whereby the pins, may be actuated atdesired times by the configuration of the track. 1

The cam track is adapted to actuate the im-- paling pins for everyproduct received on the cylinder, or to actuate the pins; only for everyother product when the cylinder is to be run collect. As embodied asegment of the cam track is removable from the path of the cam follower,and this segment is pivotally mounted for actuation from a cam track ona cylinder adjacent to the collecting cylinder. The removable segment ofthe cam track may be removed by action of the adjacent cylinder camtrack so that the impaling pinsv are actuated only for alternateproducts of the folder, or the removable segment may be disconnectedfrom actuation by the adjacent cam track and fixed in position toactuate the impaling pins for every product, whereby the collectingcylinder is run collect or straight run, respectively.

to the end of the collecting cylinder, the two operation of certainmechanisms of a printing press having cam actuating means by providing asubstantially dust tight enclosure about such means for the exclusionofdust, bits of paper and other, debris from the mechanism. Theincoveringwabout the vention provides a protective cam mechanism ofcertain partsof a printing press and is particularly adapted tomechanism in which a portion of the cam track is removable.

With these and other objects in view there is provided in a typical andillustrative embodiment of the invention a, printing .press folderhaving a rotatable collecting cylinder for the collection of printedproducts. As embodied, the collecting cylinder is provided with aplurality of impaling pins mounted on a shaft capable of rotary movementwithin the cylindrical surface of the cylinderso that the pins may beprojected out of the surface of the cylinder to engage a. productthereon, and retracted within the cylin der in a position to releaseornot to engage the product. The shaft at one end of the collectingcylinder has a cam follower eccentrically mounted to be received in; astationary cam track members serving to enclose the cam track andfollower mechanism in a substantially dusttight protective enclosure. Anarcuate plate is secured.

to the outer sidepf the removable segment of the cam track member and isadapted to close off the space between the segment and stationary partof the track member when the removable segment is pivoted, in order toretain the; protec- -tive enclosure about the cam mechanism. Ex-

tensions are provided on the stationary member of the cam track adjacentthe pivotally mounted segment to cover off the gap through. the width ofthe members when the removable segment is pivoted out of position, thuspreventing'entrance of dust and debris.

-It will be understood that the foregoing general description and thefollowing detailed description as well are exemplary and explanatory ofthe invention butare' not restrictive. thereof Referring now in detailto the illustrative em-' bodiment of the invention as shown by way ofexample in the accompanying drawing, a printing press folder mechanismof the magazine type is provided-with a collecting cylinder Ill and maleand female cutting cylinders ii and i2 respectively (details of the'lasttwo cylinders not being necessary for an understanding of the presentinvention and, therefore, not beingshown). As shown in Fig. 2, thecollecting cylinder is rotatably mounted by a shaft l3 which is mountedin the folder frame l4. A shaft 20 is mounted in the ends of collectingcylinder III for rotary movement by means of bearings 2| and carries aplurality of impaling pins 22 along its length.

The impaling pins 22 have curved shanks and are adapted to have theirpoints thrust beyond the surface of cylinder In by rotary movement ofshaft 20 to engage printed products on the 4 the cam mechanism comprisesa cylindrical portion 21 securely fastened to the folder frame I 4 bymeans of a plurality of tap bolts 28, and an outwardly radiallyextending annular cam track member 30, having a depressed track ofdesired;

configuration on its inner face to receive follower 26. The cam trackmember 30 has a, finished surface 3| at its inner face, and positionedclosely adjacent this surface is the finished surface 32 of asubstantially cylindrical cover 33. I These surfaces are positioned asclosely adjacent asmay be practically possible without? touching. Thecover 33 is secured to the end of collecting cylinder is by means of tapbolts 36 for rotation therewith, and encloses and protects from pressroom dust and debris the cam track and follower mechanism.

A segment 36 of the cam track 30 is adapted to be moved out of cam trackregistering position so that it will not actuate the impaling pins 22.

As embodied, the removable segment 36 is inte- V sion 34 by means of abolt 39 which passes through a pair of connection members 40, oneintegral with lever 31 and the other with the levers extension 34. Theextension 34 has a cam follower 4| at its end to be received in a camtrack- 42 at the end of the male cutting cylinder H, whereby theremovable cam track segment 36 may beactuated from cam track 42.

' When the printing press folder is operating collect the configurationof cam track 42 is such that it will remove segment 36 for every otherproduct received on collecting cylinder l0, so that impaling pins22.will be actuated for and engage only alternate products, from camtrack member 36. In order to preserve the protective enclosure about thecollecting cylinder cam mechanism when the segment 36 is in removedpositionf an arcuate plate ,45 is secured to the outer face of removablesegment 36 of cam track member 30 by means of tap screws 46. -The,inwardly radially extending width of plate '45 is sufficient tocover'the radial space between removable segment and cam track member 36when the former is in removed position. 1

In order further; to preserve the cam mecha: nism enclosure duringcollect operation of cylinder Hi, the cam traclrmember 30 has anextensionor lip 41 on its outer periphery. The inner surface 48 ofextension 4'! and the adjacent edge 49 of removable segment 36 aremachined in ment of segment 36. The axial space between segment 36 andmember 30 is thus closed when the segment is out of cam trackregistering position.

Another Up or extension of stationary cam track member 30 is providedadjacent the other end of segment 36, and the radially outward portion6| of this extension is likewise finished in a curved surface on aradius about the pivot point of lever 31. Thus substantially no gap willbe left at this location between the cam track member 30 and removablesegment 36 when the latter is out of cam track registering position.

When cylinder in is .to be operated straight run, and every product ofthe printing press engaged by impaling pins 22, the lever 31 may bedisengaged from its extension 38 by removing bolt 39. Lever 31 may thenbe secured by means of tap bolt 50 to an extending portion 5| of folderframe I4. When the lever 31 is so positioned and secured the removablesegment 36 will be in place as a part of cam track member 36 to withinthe scope of the accompanying claims without departing from theprinciples of the invention and without sacrificing its chiefadvantages.

What I claim is:

1. In a' printing press having a rotatably mounted cylinder membercarrying paper pper mechanism and cam mechanism at the end ofthecylinder member for actuating the gripper mechanism and including a camtrack member having a removable cam track segment movable into and outof registration with said cam track member, the combination of a coverelement secured to one of said members extending closely adjacent to theother of said members enclosing the cam mechanism, and other cover meansat the outer side of the cam track member for closing. the gap betweenthe removable cam track segment and the cam track member when the camtrack segment is out of registering position.

2. In a printing press, having a rotatably mounted cylinder havingmovable sheet taking means, and cam mechanism at the end of the cylinderfor moving the sheet taking means including a cam follower connected tothe sheet taking means and a cam track member having a cam track toreceive said cam follower, said cam track member having a removablesegment movable into and outof cam track registering position, thecombination of a cover secured to the cam track member enclosing the camfollower and cam track, and means for closing the space between the camtrack member and the tremovable'segment when the segment is out of camtrack registering position.

p 3. In a printing press, having, a rotatably mounted cylinder havingmovable sheet taking means, cam mechanism at the end of the cylinder formoving the sheet taking means including a cam follower connected to thesheet taking means and a cam track member having a cam track to receivesaid cam track follower, and an annular cover secured to the cylinderand extending closely adjacent to the cam track member enclosing thecamtrack and cam follower, said cam track member having a removable sgment movable into and out of c m track registering position, thecombination of a substantially radially disposed cover member secured tothe segment to close the radial space between the segment and the camtrack member when the segment is out of cam track registering position,and-means for closing the axial space between the segment and the camtrack member when the segment is out of registering position.

4. In a printing press, having, a rotatably mounted cylinder havingmovable sheet taking means, cam mechanism at the end of the cylinder formoving the sheet taking means including a cam follower connected to thesheet taking means and a cam track member having a cam track to receivesaid cam track follower, said cam track member having an annularfinished portion on its side towardthe cylinder, and a removable segmentmovable into and out of cam track registering position, the combinationof an annular cover secured to the cylinder extending toward the camtrack member and having a finished annular end closely adjacent to saidfinished portion whereby the cam track and cam track follower areenclosed in a substantially dust tight enclosure, an arcuatesubstantially radially disposed cover member secured to the outer faceof the segment to close the radial space between the segment and the camtrack member when the segment is out of cam track registering position,and means for closing the axial space between the segment and memberwhen the segment is out of registering position including an extensionsecured to said member having an edge extending along the path ofmovement of said segment.

5. In a printing press, having a rotatable cylinder with movable sheettaking means, cam mechanism at the end of the cylinder for moving thesheet taking means including a cam follower connected to said means anda cam track member having a cam track to receive said cam follower, saidcam track member having a removable segment movable into and out of camtrack registering position, the combination of an annular cover betweenthe cylinder and cam track member substantially completely enclosing thecam track and cam track follower, and means for enclosing the spacebetween the removable segment and cam track member when the segment isout of cam track registering position.

6. In a printing press, having a rotatable cylinder with movable sheettaking means, cam mechanism at the end of the cylinder for moving thesheet taking means including a stationary cam member having a removablesegment movable for registering and removed positions, the combinationof means between the cylinder and the cam member substantiallycompletely enclosing the cam mechanism when the segment is inregistering position, and other means between the segment and the cammember for closing the gaps therebetween when the segment is in removedposition.

EMORY W. WORTHINGTON.

